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Class 99 &
99K
To Replace the Bobbin
Hold the bobbin between the thumb
and forefinger of the left hand, with the
thread leading on top from the right
toward the left, as shown in
Fig. 18.
Place bobbin into the bobbin case and
draw the thread into the slot 1, Fig. 19
in the bobbin case, as shown.
Draw the thread backward between the
bobbin case and the tension spring until
it reaches the notch 2, Fig. 20, then pull
the thread toward the right as shown in
Fig. 20.
When closing the slide, place thread up
through slot 3, Fig. 21 as shown.
FIG. 18 Replacing the Bobbin
FIG. 19 Threading the Bobbin Case
FIG. 20 Bobbin Case Threaded FIG. 21 Under Threading Completed
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